987015552 has 128 divisors (see below), whose sum is σ = 2718781440. Its totient is φ = 317011968.

The previous prime is 987015527. The next prime is 987015559. The reversal of 987015552 is 255510789.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987015559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1804143 + ... + 1804689.

It is an arithmetic number, because the mean of its divisors is an integer number (21240480).

Almost surely, 2^987015552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987015552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1359390720).

987015552 is an abundant number, since it is smaller than the sum of its proper divisors (1731765888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987015552 is a wasteful number, since it uses less digits than its factorization.

987015552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 42.

The square root of 987015552 is about 31416.8036566421. The cubic root of 987015552 is about 995.6529814779.

The spelling of 987015552 in words is "nine hundred eighty-seven million, fifteen thousand, five hundred fifty-two".